1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268ef069f0505352f17c907802acc4bd680671cc96acb5cb6f8685cc04a1f877. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be6faeb3-ef5d-404f-8f12-0716a0fd7d9c.json and https://artists.proofprofile.net/proofs/artist/be6faeb3-ef5d-404f-8f12-0716a0fd7d9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561cf111de6156dfe7f30f74b16904f1816032365edb1ff64069fc76dc1c1007. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f633fab1e4bcd1d677c45f7ee825a08d727f81cec1573528fc158256dca5bb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc221f72b11c5866f91854705de72b62bb17e7f29ebb692705e6e4aaaf3e09b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0636b16fc1d33e818a3230392c6db3074cc00f3bc17135006c7f859d2f62eade. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76835484d209f63dbe22dd2d95bd1272b7b3ca2d3e8416c86f0b5911a5f85f9a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7249b5ec762d6c3ab90245f5e32d72a462f6f3dfa5c9b217bc946907671e6a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827a7794d64add6e3007e71f440facbc15fc40008e6f5a06f3c2b4ecb7862218. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d56d0a23c1e08394d6992b3bc1613acc7e4ba3c5b8932f4328b4d1fefb09b2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb350f2a1ade15cb7c4ce92c39e24c8dc46a01b6825ad0279f6189e3bfa6596. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd10b8bd1b9d63b5342761cb4217fcbde8e047a829092a215f39e88fbe120635. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9875875e6bad843c7d6e4abf2a87ff27addb92d6b3d7c62a49fd53b3ae137d31. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7af989625ac3e28023c60e9b84f952550a55bf04c9e08cb10bb0ca57f4f561b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318975.
i'm so tired of all of it - Slowed and Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf507378cc3b9af4b6861baa25db100b74c909bc0af1dffcedfcb53e38a83fea5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318976.
i drink a lot, it never fails me - Slowed and Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e86f1c41b02765955f50fc2eb7950c27d17ad9174f2ff531312285786cd105. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2318977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5f6ef53e8bc244d08edb0882f55fe6a55430ff8bafe64371a869f17b80ba2a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR0023312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe529ef2d2924b07d1765ede8cb94a6d0f7ec22712b87ab73e7f73d3c3a585336. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2166202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce2fac0eadd9bde9dd9f2910b25b63dec6cb4126a665ba03d55054958b9ea20. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR0023309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a67dbb8ea9d9ac6e865bdc8a26f185d1a9b499c799b033a962d60f5c1a5be47. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812424723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18188ee565ca7d36f7b0dfe688ed0a7af2db6df278822159969377227746918. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812424318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4779e27774466be4dffbfc50bb6f038da0c05084034530be80d23095ec5ae70. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AEA3A2305856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f3106ac460d7103201d0135cdb4c8220e95db747746ba5f812a2eab84bbee6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJL41900438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb1303637c903a578e8753108191ed21dae092606c35b2d495b8b1abcc91297. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AEA3A2305624.
brooklyn bassline blitz (Slowed and Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67617e83a1289f08fd64584f6af9a0963543bc0d97c65e703843f6b505af4ee9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJL41900396.
don't need a whole lot - Slowed and Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43a596e45de31f8abdf943f80cc2f532002c5d09b56b92b3fb17f88783ff216. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2493215.
brooklyn bassline blitz (feat. Jim Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d243c3618a4a6964ada00b29bba3318497511bfa1dc8b8f423338c031095aaf. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJL41900406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6125e631bb3bb9dfb2e643184c70fe4aa7aaeb4f435a3987fcd03cb180cf15. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJL41900395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebacc201c594c2b9890b9a1d396c31ab9cdbccfdb3daa9dc15eb1f31de16bff8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2493212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3190f55a5eee56d4209fd3ce7f2c76447580d49d6dff9be6a71463e1fb200d31. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJL41900381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686199f7604aba1fcc086ef51f44e40ce34d99639070de69dc5ed9a5826e32ec. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJL41900378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003444985975eed68274500d3d9160d5e0f5fd2bb353ff206279286f4373c5cd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2401426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb328b7ca73f606d2f5ee02e463a8afa2a5046c297741dd743b0ba9c823b77d5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2401425.